Centrifugal spreader



Od' 4 i927 w. z. PULLIAM CENTRIFUGAL SIREADER Filed Dec. 6, 1926 2Sheets-Sheet 2 lvwewbofc Vw Mamma Patented oa. 4, 11927. e y l 1,644,031UNITED STATES PATENT GFFICE.v

WILLIAM Z. PULIIAM, OF INGLEWOOD, CALIFORNIA.

cEN'rnIrUGAL srnnannn.

Application led December 6, 1926./ Serial Nea-153,007.

The invention relates to improvements in by suitable bearing hangers 20.B a chain spreaders designed primarily for spreading 21 'and sprockets,the inner endo shaft 19 sand or gravel upon roadways. and it is one yisconnected with a drive shaft 22 above the object of the invention toprovide a new and trailer body 11. A suitable motor 23 is car- '5improved construction and relation of parts, ried by this trailer and isfpreferably mountwhereby not only the quantity discharged by ed upon theinner end o the plate 12 for the centrifugal spreader, but the directionof rotating the shaft 22, and an appropriate discharge, may becontrolled clutch 24 may be provided between said shaft Another objectof the invention is to proand motor.

vide a centrifugal spreader mounted in a. In the present showing, astandard l2,5 novel manner upon a trailer for attachment rises from thefront portion of the trailer to a truck, and provided with means forconbody 11, arid a lever 26 4is fulcrumed lbeducting material from thetruck to the tween its ends at 27' to the upper end of spreader, thetrailer and parts carried there-said standard. By suitable hangers 28,one

by being disconnectible readilyfrom the end of this lever supports an apropriate truck when all of the truck contents have chute 29 whosefunction is to con uct mabeen distributed by the spreader. V terial fromthe rearend of the truck bod With the foregoing in view, the inventiononto the rotor 16. Any desired means, suc as resides in the novelsubject matter hereina, cable 31 and cleat 3 2 may be provided to 2oafter described and claimed, the descript'on hold the lever 26 againstfurther movement being supplemented by the accompanying. after it hasbeen swung about its fulcrum to drawings. adjust the chute 2.9 to themost desirable Fig. 1 is a side elevation showing the position. Thetail-gate 33 ofthe body 30 spreader attached to a truck, is preferablyheld against excessive opening Fig. 2 is a top plan view of the parts bychains or the like 34 and when the bod shown in Fig. 1. 30 is inclinedas shown in Fig. 1 and the tai Fig. 3 is an enlarged'fragmentary plangate properly set, material from `said body view of the centrifugalspreader and assowill slide down the chute 29 onto the rotor ciatedelements, parts being shown in hori- 16 and will by the latter bedistributed over 30 zontal section. the roadway orother surface to becoated.

Fig.v 4 is a vertical transverse sectional Novel provision is made forcontrolling view on line 44 of Fig. 3. y the discharge of material fromthe rotor 16. Fig. 5 is an additional vertical section on In the presentshowing, a horizontal. spider the plane of line 5-5 of Fig. 3. or plate35 is pivotallyI mounted between the The numeral 6 designates a trailerprovidrotor 16 and the supporting plate 12, the ed with wheels 7 and astub tongue 8 adaptshaft 15 serving as a pivot for said plate. ed'to bedetachably hitched at .9 to a motor The (peripheral portion of thisplate is protruck 10. Resting upon the body 11 of this vide with anupstanding wall 36 which extrailer and projecting laterally from it, istends around a portion of the rotors peripha horizontal supporting plate12, any the effective portion of said deslred ery. the ends of meanssuch as bolts 13, being employed for wall being denotedat 37 and 38.These ends securing said plate and body together. The may be connectedby an arcuate wall porlaterally'projecting end of the supporting tion 39disposed slightly above the plane 0f plate 12 is preferably formed withopenthe rotor 16, if desired. ings 14 for sake of lightness and toprevent- Secured to and projecting inwardly from accumulation of sandand the like thereon. the plate 35, over the supportin plate 12, Anupright shaft 15 is rotatably mountedin isan arm 40 which may be used orturning any desired manner upon this laterally prothe plate and the wall36 about thc shaft 15 jecting portion of the plate 12, theupper end as apivot. To then hold these parts in adof said shaft being provided with arotor 16 justed position, I may well make use of a dog for spreading thesand, gravel or the like 41 and a curved rack 42, the former beingcentrifugally, the upper side of said rotor mounted on the lever or arm40 while the having radial vanes 17. By appropriate rack is secured tothe plate 12.

gearing 18, the other end of the shaft 15 is An additional arcuate wallrisesfrom the connected operatively with a transverse horouter ends ofthe plate 12 and co-operates izontal shaft 19 which is rotatably carriedwith the wall 36 in controlling the discharge able plate at theperiphery the above-named pivotal of material from the rotor 16. Thisadditional wall..in the present showing, is formed .of two slidablyoverlapped sections 43 and 44, 'both of which rest slidably upon theouter end of the plate 12. The outer ends of these wall sections 43 and44 are preferably directed outwardly at 45 and 46 respectively, forming-handles by means of which they may be slid relatively or simultaneouslyabout the periphery of the rotor 16. The end 45 co-operates with the end37 of the wall 36. in forming a discharge throat 47 for the sand, gravelor the like, and it will be seen that said end 45 may be extended anydesiredv extent beyond the end 38 of the wall 36, so'that the size ofthe throat'47'may be controlled. It will also be observed 4that bymaking proper circumferential adjustment of the wall 36 and the wall43--44, the direction of discharge from the spreader may be varied asoccasion may demand.

For slidably mounting the wall sections 43-44 and for securing themtightly against the plate 12 after they have been adjusted, I may well4make use of bolts 48 passing through said plate 12 and having hooks 49at their upper ends, engaging the wall sections 43-44, the lower ends ofthese bolts being provided with nuts 50 at the lower side of the plate12.- Loosening of these nuts, permits circumferential sliding of thewall sections 43-44. whereas tightening of said nuts will effectivelyclamp said sections in adjusted position.-

By `the novel construction shown and described or a substantialequivalent thereof, a. spreader is provided which is rather simple andinexpenslve, yet will be efficient and in every way desirable. Thegeneral construction shown is preferably followed, but within the scopeof the invention as clamed, variations may of course be made.

1. In a centrifugal spreader, which to deposit material to be spread, astationary support upon which said rotor is mounted, a movable plateinterposed btween the support and the rotor and mounted for pivotalmovement about the axis of the latter, an arcuate wall rising from saidmovof said rotor, means for holding said movable plate after plvotalmovement thereof to circumferentlally adjust said wall, and a secondarcuate wall rising from said support at the outer s1de of the firstnamed wall, said second wa ll having an end cooperable with the opposedend` of thefirst named wall in forming an outlet throat whose size maybe varied by movement of the a rotor upon plate.

2. In a centrifugal spreader, which to deposit material to be tionarysupport upon which said rotor is mounted, a movable plate interposedbetween a rotor upon spread, a stathe support and the rotor and mountedfor pivotal movement about the axis of the latter, an arcuate wallrising from sai-dinerable plate at thc` periphery of said rotor, meansfor holding said movable plate after pivotal movement thereof tocircumferentially adjust said wall, a second arcuate wall ris ing fromsaid support at the outer side of the first named wall, said second wallhaving at leastA a portion slidably engaging the support and spaced fromone end of the first named wall `to provide an outlet throattherebetween, tli e.width of said throat and its position being variableby circumferential adj ustment of' the first named wall and said portionof the second wall, an arm secured to and projecting inwardly from saidmovable plate over said stationary support whereby said movable platemay be turned, a curved rack on said stationary supportand aldog carriedby said arm and adapted to engage said rack for securing said movableplate and its wall portion to the support after adjustment and means forsecuring said wall portion to the support after adjustment.

3. In a centrifugal spreader, a rotor upon which to deposit material tobe spread; a stationary support upon which said rotor is mounted, amovable plate interposed between the support and the rotor and mountedfor' pivotal movement about the axis of the latter, 'an arcuate wallrising from said mov` ablev plate at the periphery of said urotor, meansfor holding said movable plate after pivotal movement thereof tocircumferential ly adjust said wall, a second arcuate wall rising fromsaid support at the outer' side of the first named wall, said secondwall having at least' a portion slidably resting on the support andspaced from one end of the first namedwall to provide an outlet throattherebetween, the width of said throat and its position being variableby circumferential adjustment of the first named wall and said portionof the second Wall, bolts passing through the support and having hooksengaging the upper edge of the second named wall, and nuts threaded onsaid bolts un der the support to downwardly draw said second named walland clamp it to the suport. p 4. A spreader comprising a wheeledltrail,w er and means for connecting it with a truck, a support securedto and projecting laterally from the trailer body, j er mounted on saidsupport, a trailer-car ried motor operatively connected with saidspreader for driving the same, and trailer` carried means forlconducting` material te said spreader from the truck.

5. A spreader comprising a wheeled trait er and means for connecting itwith a truck, a support secured to and projecting laterally from thetrailer body, a centrifugal spreader mounted on said support, atrailer-carried a centrifugal spread motor operatively connected with ysaid lever with the standard .for holding theA spreader for driving thesame, a standard `former when swun vto different positions to l risingfrom the trailer, a lever fulcrumed raise or lower the c ute. v betweenits ends to said standard, a chute In testimony whereof I have hereuntoaf'- 6 suspended from one end of said lever and fixed my signature.

disposed to conduct material to the spreader v from the truck, and meansconnectlng the l WILLIAM Z. PULLIAM.

